Stationary bike



FIG. 1 shows a top front isometric view of a stationary bike in accordance with the present design.

FIG. 2 shows another isometric view thereof.

FIG. 3 shows a front view thereof.

FIG. 4 shows a rear view thereof.

FIG. 5 shows a left side view thereof.

FIG. 6 shows a right side view thereof.

FIG. 7 shows a top view thereof; and,

FIG. 8 shows a bottom view thereof.

The broken lines represent environment that forms no part of the claimed design. 

CLAIM The ornamental design for a stationary bike, as shown and described. 